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any shrub or small tree of the genus Rauwolfia having leaves in whorls and cymose flowers; yield substances used medicinally especially as emetics or purgatives or antihypertensives

any of several alkaloids extracted from the shrub Rauwolfia serpentina

any shrub or small tree of the genus Rauwolfia having leaves in whorls and cymose flowers; yield substances used medicinally especially as emetics or purgatives or antihypertensives

any of several alkaloids extracted from the shrub Rauwolfia serpentina

A plant genus of the APOCYNACEAE or dogbane family. Alkaloids from plants in this genus have been used as tranquilizers and antihypertensive agents. RESERPINE is derived from R. serpentina.